Improvement in stills



4 T. GAFF.

STILLS.

Na. 189,448. Patentea April 1o, 1877.

UNITED ISTATEs PATENT OFFIG;

- i THOMAS GAEE'QF AUBORA, INDIANA.

Ilnfi'PRovEli/lENT IN sTlLLs.

Specification forming part of Letters Patent No. 189,4-1S, dated April10, 1877 application filed i' November 17, 1875.

To all whom t't may concern:

Be it known that I, THOMAS GAFF, of Aurora, Dearborn county, and Stateof Indiana, have invented an Improvement in Stills, of which thefollowing is a specification My invention consists of certain deviceswhich, as applied by me to a still or column,

produce useful results; and my inventiou consists, in the first part, ofa certain conducting-pipe and cap, terminating in a perforatedbell-mouth, in connection with the doubler and still, which conducts theheated vapors from the still in such manner as to boil and redistill thelow-Wines precipitated in the bottom of the doubler by the condensationfrom the beer-coil, and thereby raise the proof of the 'spirlts that areconducted to the worm. My invention consists, in the second part, inconnection With the still or column, the doubler, comprising thebeer-coil and the conducting-pipe'dand cap, terminating in a perforatedbell-mouth, andof certain adjustable overflow-pipes, suitably trapped,for returning'the low-Wines to the still as they accumulate in thedoubler.

Figure 1 is a broken sectional elevation of a still or column with my.improvement attached. Fig. 2 is aplan showing my improvements. Fig. 3shows the cross-configuration V of the beer-pipe.

A is the column or still, having steam-pipe a and discharge-pipe a' andextendin g shelves or plates a. Secured upon the top of this still is acase, B, having intimate connection with the still through pipe O, andwith the worm through exit-pipe D. E is the pipe leading from thebeer-pumps, and it enters the case B, and is bent so as to form a wormor coil, e, after which it passes down and into the column till itpasses the second plate a. Suspended over the upper mouth of pipe O is acylindrical cap, F, extending nearly to the bottom of case B, where itenlarges preferably to a bell-Shaped mouth, f, having perforations f'. GG are overfloW-pipes leading from the case B to the still, and providedWith suitable trappings g g.

The operation of the device as an entirety is as follows: The beer orwash is pumped through the pipe E e, and thence to the still, where itdistributes over the plates a", and is boiled or distilled by the steamfrom the pipe a. The vapor arising from this distillation, in companywith the uncondensed steam, rises and passes up through pipe O into thecase B, which it enters near the bottom by first passing down thecylindrical cap F, and thence out, and under or through the perforationsf' in the bell-Shaped mouth f. After having fairly entered the case B,the vapors permeate the case and around the coil c of beer-pipe E,thereby, on account of their high temperature, heating the beer in thepipe E e, and in the same operation depositing the heavier and lessvolatile vapors to the bottom of the case, and leaving the high-Wines topursue their course through pipe D to the worm.

It is obvious that, by this operation, a

higher proof of spirit is obtained, which is delivered to the worm. Itis also obvious that the beer, when thus heated before entering thecolumn, will require less heating after entering it, and acorrespondingly less number of plates or shelves a upon which it isheated, thus dispensing with much unnecessary height in the column.

It Will readily be seen the vapors passing through the low-wines-that,as before stated, are precipitated in the bottom of the case from thebell-mouth f of cap F-will boil or redistill them, and carry the purerparticles along toward the worm, subject, however, to the condensingproperties of the coil e. Thus the action will continue, leaving thegrosser particles behind always, and for the disposing of which latter Iprovide overflowpipes G G, having suitable traps g, which will returnsaid low-Wines to the still, where they are again subject to the actionof the rising steam; When the wash is freed from all alcoholicparticles, it precipitates itself to the bottom of the still, and runsoff through pipe-a'.

I am aware that all the elements of my still, separately considered, areold, and that some 4 of them have been used in combination, and

with others in stills of the character described.

2. In combination with still A, case B, pipes E e, ppe O, and cap F ff', the trapped overflow-pipes G g, substantially as and forI thepurpose specified.

In testimony of which nvent'ion I hereunto set my hand.

THOS. GAFF. Wtnesses:

J oHN E. JONES, J. L. WARTMANN.

